Reference elements will be created automatically in two cases.
•If you edit a fragment in the context of an assembly with the enabled selection of assembly elements (Select assembly Elements), and an assembly element was used during execution of any command.
•If we use the Detail > Create command for the body in the assembly.
When automatically creating reference elements, the Do not update geometry when recalculating option is not active.
All auto-generated reference elements (except auto-generated internal links to eliminate recursion) will be updated during recalculation.
If necessary, you can disable the update of the created reference element. To do this, in the context menu of the reference element (called in the 3D Model window of the fragment file) you need to specify the flag of the Do not update geometry when recalculating option.
When you use the Detail > Create command on a body in an assembly, reference elements will be created for those constructions that cannot be moved to the created fragment file.
If there are elements among the parent elements of a body that depend on other bodies, such parent elements cannot be taken from the assembly. In this case, a reference element is created.
For example, a profile is built on the face of the body, which is the parent of the body that we want to save to a separate file. This profile cannot be taken from an assembly without the body on which it is built. But we do not need the second body in the created file. Then a reference element will be automatically created for the profile. In the created file, the specified profile will be a reference element.